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Transcript of lloyd.m space preziiiiii

•Halley’s Comet was last seen in the inner Solar System in 1986, it will be visible again from Earth sometime in 2061 (get your camera ready). More comet facts.

•Venus is the hottest planet in our solar system with a surface temperature of over 450 degrees celcius.

•Many scientists believe that an asteroid impact caused the extinction of the dinosaurs around 65 million years ago. More asteroid facts.

The Solar System formed around 4.6 billion years ago. More Solar System facts.The Moon appears to have more craters and scars than Earth because it has a lot less natural activity going on, the Earth is constantly reforming its surface through earthquakes, erosion, rain, wind and plants growing on the surface, while the moon has very little weather to alter its appearance. More Moacts. •Saturn isn't the only ringed planet, other gas giants such as Jupiter, Uranus and Neptune also have rings, they are just less obvious. •Footprints and tyre tracks left behind by astronauts on the moon will stay there forever as there is no wind to blow them away. •In 2006, astronomers changed the definition of a planet. This means that Pluto is now referred to as a dwarf planet. Learn more dwarf planet facts.

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Earth is the third planet from the Sun and is the largest of the terrestrial planets. The Earth is the only planet in our solar system not to be named after a Greek or Roman deity. The Earth was formed approximately 4.54 billion years ago and is the only known planet to support life.

The Earth’s rotation is gradually slowing: This deceleration is happening almost imperceptibly, at approximately 17 milliseconds per hundred years, although the rate at which it occurs is not perfectly uniform. This has the effect of lengthening our days, but it happens so slowly that it could be as much as 140 million years before the length of a day will have increased to 25 hours.

The Earth was once believed to be the centre of the universe: Due to the apparent movements of the Sun and planets in relation to their viewpoint, ancient scientists insisted that the Earth remained static, whilst other celestial bodies travelled in circular orbits around it. Eventually, the view that the Sun was at the centre of the universe was postulated by Copernicus, though this is also not the case.

Earth has a powerful magnetic field: This phenomenon is caused by the nickel-iron core of the planet, coupled with its rapid rotation. This field protects the Earth from the effects of solar wind.

There is only one natural satellite of the planet Earth: As a percentage of the size of the body it orbits, the Moon is the largest satellite of any planet in our solar system. In real terms, however, it is only the fifth largest natural satellite.

Earth is the only planet not named after a god: The other seven planets in our solar system are all named after Roman gods or goddesses. Although only Mercury, Venus, Mars, Jupiter and Saturn were named during ancient times, because they were visible to the naked eye, the Roman method of naming planets was retained after the discovery of Uranus and Neptune.

Of all the planets in our solar system, the Earth has the greatest density: This varies according to the part of the planet; for example, the metallic core is denser than the crust. The average density of the Earth is approximately 5.52 grams per cubic centimetre.

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Similar FaMoon Facts The Moon (or Luna) is the Earth’s only natural satellite and was formed 4.6 billion years ago around some 30–50 million years after the formation of the solar system. The Moon is in synchronous rotation with...

Solar Eclipse Facts What is a Solar Eclipse? A solar eclipse is a natural event that takes place on Earth when the Moon moves in its orbit between Earth and the Sun (this is also known as an occultation). It...

Jupiter Facts The planet Jupiter is the fifth planet out from the Sun, and is two and a half times more massive than all the other planets in the solar system combined. It is made primarily of gases...

The Moon (or Luna) is the Earth’s only natural satellite and was formed 4.6 billion years ago around some 30–50 million years after the formation of the solar system. The Moon is in synchronous rotation with Earth meaning the same side is always facing the Earth. The first unmanned mission to the Moon was in 1959 by the Soviet Lunar Program with the first manned landing being Apollo 11 in 1969.Moon ProfileCircumference at Equator: 10,917.0 kmDiameter: 3,475 kmMass: 73,476,730,924,573,500 million kg (0.0123 x Earth)Orbits: The EarthAverage Distance from Earth: 384,400 kmLength of Orbit: 27.3 Earth daysSurface Temperature: -233 to 123 °C